Premium
Front Cover: Re‐investigation of Barium‐Gold(I)‐Tetra‐Thiostannate(IV), Ba[Au 2 SnS 4 ], with Short Au I ···Au I Separation Showing Luminescence Properties (Z. Anorg. Allg. Chem. 21/2020)
Author(s) -
Teske Christoph Ludwig,
Terraschke Huayna,
Mangelsen Sebastian,
Bensch Wolfgang
Publication year - 2020
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202070211
Subject(s) - luminescence , tetra , crystallography , barium , materials science , crystal structure , crystal (programming language) , facet (psychology) , front cover , ion , cover (algebra) , chemistry , optoelectronics , inorganic chemistry , computer science , mechanical engineering , medicinal chemistry , engineering , social psychology , psychology , organic chemistry , personality , programming language , big five personality traits
The cover picture shows a partial view of the crystal structure of Ba[Au 2 SnS 4 ]. A salient property of this crystal structure is the partial framework composed of AuS 2 dumbbells and SnS 4 tetrahedra to form chains [(Au 2 SnS 4 ) 2– ] ∞ propagating in the [100] direction. Within the chains a short Au···Au separation of 2.9538(13) Å is observed, while the interchain Au···Au separation is longer at 3.383 Å. The Ba 2+ cations ( not depicted here ) are eightfold coordinated by S 2– anions in a distorted bicapped trigonal prismatic environment BaS 8 . These polyhedra share all S 2– anions thus generating a three‐dimensional network. This connection scheme generates voids along [100] hosting the [(Au 2 SnS 4 ) 2– ] ∞ chains. The short Au···Au separation ( dotted lines ) is indicative of a relatively strong aurophilic bonding interaction. When irradiated with UV light, Ba[Au 2 SnS 4 ] is luminescent at the blue‐green spectral range with emission maximum at approximately 21000 cm –1 . More Details can be found in the Article by Christoph Ludwig Teske, Huayna Terraschke, Sebastian Mangelsen, and Wolfgang Bensch on page 1716 ff.